Most lubricant gets bought the way batteries get bought. You need it, you grab whatever is on the shelf, you don't read the back of the box. Then it's sticky, or it stings slightly, or it disappears in ninety seconds, and you quietly decide lube isn't for you.
The product was the problem. Lubricants vary enormously in what they're made of and how your body responds to them, and the differences aren't cosmetic. Some formulas actively draw moisture out of the tissue they're meant to protect. Others are barely distinguishable from a skin moisturiser.
Here's how to read the category properly.
Lubricant is not a last resort
There's a persistent idea that needing lube means something has gone wrong — that you aren't attracted enough, aroused enough, or young enough. It's worth dismantling this early, because it keeps a lot of people in avoidable discomfort.
Natural lubrication varies with your cycle, your hydration, your stress levels, your medication, how much sleep you got, and where you are hormonally. It fluctuates in people who are extremely aroused. Antihistamines dry you out. So do many antidepressants, hormonal contraceptives and cancer treatments. None of that is a verdict on your desire.
If dryness is a recurring theme rather than an occasional one, our guide to vaginal dryness solutions goes deeper into causes and treatment. But for most people most of the time, the fix is simply choosing a better product and using more of it.
The four types, and what each one is actually for
Water-based
The most common category and the most variable in quality. Water-based lubes are safe with latex condoms and every toy material, wash off easily, and don't stain. The trade-off is that they absorb and evaporate, so they need reapplying — and cheap ones get tacky as they dry.
Quality within this category ranges from excellent to genuinely irritating, almost entirely because of what's used to thicken and preserve the water. Read the ingredients.
Best for: everyday use, condom use, toys, anyone who wants easy cleanup.
Silicone-based
Silicone doesn't absorb into skin, so it lasts far longer than anything water-based and stays slick in water. It's hypoallergenic and very few people react to it. It's the usual recommendation for people with significant dryness, for longer sessions, and for anal play where friction is a bigger issue.
Two drawbacks: it degrades silicone toys on contact, and it needs soap to remove properly. It can also stain sheets.
Best for: longevity, water, sensitive skin, significant dryness.
Oil-based
This category includes plant oils, botanical blends and CBD-infused intimate oils. Oils are long-lasting, deeply conditioning for skin that's become thin or fragile, and often the most comfortable option for people dealing with tissue changes from menopause or medication.
The important limitation: oil degrades latex. If you rely on latex condoms or diaphragms for contraception or STI protection, oil-based lubricant will compromise them. Polyurethane condoms are unaffected. Always check the specific product's label for barrier compatibility rather than assuming.
Our Soothe Intimate Relief Oil sits in this category — a pH-conscious botanical oil with full-spectrum CBD, formulated for bodies that find conventional lubricants irritating. Bluum Intimate Arousal Oil is the arousal-focused counterpart, and the Soothe + Bluum bundle covers both. If you're curious about the mechanism, our guide to CBD and sexual health explains what the research does and doesn't show.
Best for: dryness, sensitive or thinning tissue, massage, non-latex barrier situations.
Hybrid
Water-based with a small percentage of silicone. Longer lasting than pure water-based, easier to clean than pure silicone, usually toy-safe depending on the silicone content. A reasonable default if you don't want to think about it.
Two numbers that matter more than the marketing
pH
A healthy premenopausal vagina sits around pH 3.8 to 4.5 — genuinely acidic, and that acidity is what keeps protective lactobacilli thriving and opportunistic bacteria suppressed. Vulvar skin is slightly less acidic, closer to 5.5.
A lubricant far outside that range disrupts the environment it's sitting in. Repeated disruption is associated with bacterial vaginosis and irritation. Look for products that state a pH in the 3.8–4.5 range for vaginal use. Anal tissue has a different profile, closer to neutral, which is why some brands make separate formulas.
Osmolality
This is the one almost nobody knows about, and it's arguably the more important of the two.
Osmolality measures the concentration of dissolved particles. If a lubricant is much more concentrated than the cells it touches, it pulls water out of them by osmosis. The tissue dries and the surface layer can become damaged — the exact opposite of what you bought the product for.
The World Health Organization has advised that personal lubricants ideally sit at or below 380 mOsm/kg, and should not exceed 1,200. A number of widely sold drugstore lubricants come in several times higher than that ceiling. Glycerin and propylene glycol are usually the reason, since both are used in quantity to create the texture people expect.
Few brands publish osmolality. The ones that do are generally worth paying attention to, because it signals they've tested for it.
Ingredients worth avoiding
- Glycerin, in high concentration. A sugar alcohol that drives osmolality up. Some people find it correlates with yeast overgrowth; the evidence there is mixed, but the osmolality issue is well established.
- Propylene glycol. A common irritant at the levels used in some lubricants.
- Chlorhexidine gluconate. An antibacterial preservative that doesn't distinguish between harmful bacteria and the lactobacilli you want to keep.
- Nonoxynol-9. A spermicide that damages the vaginal lining with repeated use and is associated with increased infection risk. Avoid unless specifically prescribed.
- Fragrance, flavouring and "scent." The most common cause of contact irritation in intimate products, and entirely cosmetic.
- Warming, cooling and tingling agents. Usually capsaicin derivatives, menthol or high-alcohol content. They work by mildly irritating tissue. Some people enjoy this; if you're already prone to sensitivity, skip them.
- Parabens. Increasingly avoided by better formulators, easy enough to sidestep.
If a lubricant stings, burns, or leaves you itchy the next day, that isn't something to push through. Stop using it. Persistent irritation after switching products deserves a proper look — our guide to vulva care and intimate hygiene covers how to tell irritation from infection.
Compatibility, quickly
- Latex condoms: water-based and silicone are safe. Oil-based are not.
- Polyurethane condoms: all three are fine.
- Silicone toys: water-based only. Silicone lube will degrade the surface.
- Glass, steel and ABS toys: anything works.
- Trying to conceive: most standard lubricants impair sperm motility. Use a product specifically labelled fertility-friendly.
Matching the product to the moment
- Everyday, with condoms: a well-formulated water-based or hybrid.
- Persistent dryness, menopause, thinning tissue: oil-based or silicone. See our menopause and sex guide for the fuller picture.
- Pain with penetration: generous silicone or oil — but also read our guide to pain during sex, because lubricant treats friction, not the underlying cause.
- Anal: silicone, thicker formulas, considerably more than you think.
- Solo or with toys: water-based for silicone toys, otherwise your preference.
- In the shower or bath: silicone. Water-based washes straight off.
How to actually use it
Use more than you think. The single most common mistake is a conservative amount that runs out halfway through, which produces exactly the friction you were trying to avoid.
Warm it in your hands first. Apply to both partners, not just one. Reapply without ceremony — stopping to add more isn't an interruption, it's maintenance. And keep it somewhere you'll actually reach for it, which is not the bottom drawer.
One practical note: emptying your bladder and rinsing afterwards remains sensible regardless of what you used. Our guide to UTI prevention after sex covers why.
Frequently asked questions
Can I use coconut oil as lubricant?
Plenty of people do. It's a reasonable emollient, but it will degrade latex condoms, it can be difficult to wash out fully, and there's some evidence it may disturb vaginal flora in people who are already prone to imbalance. A formulated intimate oil is a safer version of the same idea.
Does using lubricant mean I'm not aroused enough?
No. Natural lubrication correlates only loosely with subjective arousal — researchers call the mismatch arousal non-concordance, and it's extremely common. Hydration, hormones, medication and cycle stage all affect it independently of how you feel.
Is silicone lubricant safe to use internally?
Yes. Medical-grade silicone is inert, isn't absorbed, and is one of the least reactive options available. It just doesn't belong near silicone toys.
How long does an open bottle last?
Check the label, but most lubricants carry a shelf life of one to three years, shortened once opened. If a product separates, changes colour, or smells different from when you bought it, replace it.
Do I still need lubricant if I'm using an intimate oil?
An intimate oil is a lubricant, with the added property of conditioning skin over time. The only reason to keep a water-based product alongside it is latex condoms or silicone toys.
The takeaway
The right lubricant is the one your body doesn't notice. If you're aware of the product at all — because it's sticky, or stings, or has vanished — it's the wrong one for you, and there are dozens of alternatives.
Read the ingredients, look for a stated pH, avoid the irritants list, and match the base to what you're actually doing. Then use twice as much as feels reasonable.
This article is for general information and is not medical advice. Speak to a qualified healthcare provider about symptoms specific to you.